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(121 - 140 of 5,065)
James Bonner explaining an exhibit
Painting platform
Harry Bateman
120″ machine
H. C. Yin
Schmidt dome looking east
200″ table with timbers in place for mounting disc for edging
Norman Horowitz
Van de Graaff accelerators
Paul Ehrenfest and Calvin Bridges
Geology Division
Henry Hellmas in plant lab
The McLellan micromotor photographed under a microscope
Unidentified man next to an oscilloscope
Jerome Vinograd
200″ tool shows core construction and method of checking curvature
Arrival of south box girder
Cornelis Wiersma with unidentified woman in lab
View of dome from Power House
John Bolton of CSIRO (Sydney, Australia) speaking at dedication of first 130′ radio telescope (OVRO)